South San Francisco

South San Francisco is a city in San Mateo County, California. The area was settled in 1827 as a Mexican rancho, and the city of South San Francisco was conceived as an industrial suburb of San Francisco. The area was divided into industrial and residential districts during the 1890s, and the city was incorporated on 19 September 1908. By the 1920s, South San Francisco was the smokestack capital of the San Francisco Peninsula, and industry remained the city's main focus through the 1950s. After the end of World War II, smokestack industry was replaced by light industry, warehousing, and residential development. In 2016, South San Francisco had a population of 66,980.